Transports are not built as applications, but are built as auto parts. This means that when installed, they add their services to the system but do not add an application to the Extras Drawer. (They are represented by an icon in the Extras Drawer, but you can't tap it to open it like you can an application icon.)

For a complete description of the

protoTransport

object, see "protoTransport"

(page 19-2) in Newton Programmer's Reference.

The following subsections describe operations that a transport can perform, and the methods that you must supply or call in your transport object to support these operations.